Exactly what do groundhogs know about weather? Not as much as your science students will after completing these lessons and activities that cover everything from the earth's rotation and the creation of shadows, to cloud...

Take young naturalists on an exploration of the world's tropical rainforests with this extensive collection of lessons and activities. Whether its creating leaf and flower prints or investigating the absorption spectrum of...

That's Amazing! is the theme of an English language development unit created by Houghton Mifflin. Following a speak, look, move, and listen routine, scholars delve into topics; seasons, weather, animals, landforms, telling...

A slideshow and a short multiple-choice quiz on the topic of clouds, how they form, the kinds of precipitation they can create, the main types of clouds, and cloud descriptor terms.

Solar power is cheaper and more sustainable than our current coal-fueled power plants, so why haven't we made the switch? The real culprits here are the clouds, which make solar power difficult to control. Alexandros George Charalambides...